<html lang="en">
<head>
  <meta charset="utf-8">
  <title>Vue App</title>
  <link rel="stylesheet" href="./css/bootstrap.css">
  <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
  <script src="https://unpkg.com/vue-router@3.5.2/dist/vue-router.js"></script>
</head>
<body>
<div id="app">
  
</div>
<script src="./js/index.js" type="module"></script>
</body>
</html>